我一直在四处寻找解决方案,但没有真正成功。我有一个没有深度限制的 parent 和 child 的多维数组。这是从数据库生成的,但问题是项目 ID 成为键,使用我将平面数组排列成多维数组的方式,如下所示:
Array(
[28] => Array
(
[id] => 28
[color] => #ff24e5
[name] => Personal
[parent_id] =>
[children] => Array
(
[23] => Array
(
[id] => 23
[color] => #41c3a3
[name] => Shopping
[parent_id] => 28
[children] => Array
(
[22] => Array
(
[id] => 22
[color] => #8be32b
[name] => Deals
[parent_id] => 23
[children] => Array
(
)
)
)
)
[150] => Array
(
[id] => 150
[color] => #e9a3f0
[name] => Orders
[parent_id] => 28
[children] => Array
(
)
)
)
)
)
我想要的是一个执行以下操作的函数:
Array (
[0] => Array
(
[id] => 28
[color] => #ff24e5
[name] => Personal
[parent_id] =>
[children] => Array
(
[0] => Array
(
[id] => 23
[color] => #41c3a3
[name] => Shopping
[parent_id] => 28
[children] => Array
(
[0] => Array
(
[id] => 22
[color] => #8be32b
[name] => Deals
[user_id] => 1
[selected] => 0
[parent_id] => 23
[children] => Array
(
)
)
)
)
[1] => Array
(
[id] => 150
[color] => #e9a3f0
[name] => Orders
[parent_id] => 28
[children] => Array
(
)
)
)
)
)
本质上是从 0 开始重新分配键。我尝试了很多方法,但我假设我需要找到一个递归解决方案,当我尝试这样做时,它破坏了我的数组。我正在阅读 array_walk_recursive() 函数,但我不太清楚除此之外还能做什么。本质上,有没有办法重置多维数组中的数字键?
感谢您的帮助!
最佳答案
你真的需要添加 is_numeric 条件来阻止文本键混淆......
function fix_keys($array) {
foreach ($array as $k => $val) {
if (is_array($val))
$array[$k] = $fix_keys($val); //recurse
}
if( is_numeric($k) )
return array_values($array);
return $array;
}
我这样做了:
function fix_keys($array) {
$numberCheck = false;
foreach ($array as $k => $val) {
if (is_array($val)) $array[$k] = fix_keys($val); //recurse
if (is_numeric($k)) $numberCheck = true;
}
if ($numberCheck === true) {
return array_values($array);
} else {
return $array;
}
}
关于php - 重置多维数组中的数组键,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6990970/